TABLE 2

Results from Linear Regression Analysis of 5 Parameters and Error Between Determining LVM by MPS and by MRI

	R²		P
Parameter	New segmentation algorithm	QPS	New segmentation algorithm	QPS
Heart rate by electrocardiography	0.02	0.01	0.11	0.20
Perfusion defect score by QPS	0.04	0.01	0.01	0.14
LV radius by MRI	0.08	0.13	<0.001	<0.001
LV length by MRI	0.20	0.24	<0.001	<0.001
Wall thickness by MRI	0.63	0.67	<0.001	<0.001

Note that results are similar for new method, compared with QPS, for all 5 parameters. Both methods have wall thickness as parameter with strongest correlation to error in LVM.